/* ================================================
   NavaNode Portal - Main Stylesheet
   Cyber-Pro Dark Theme
   ================================================ */

/* CSS Variables */
:root {
    /* Color Palette - Crimson Dark Theme */
    --bg-primary: #0B0D10;
    --bg-secondary: #0F1114;
    --bg-tertiary: #151719;
    --bg-card: #151719;
    --bg-hover: #1C1E22;
    --bg-active: #232528;

    --accent-primary: #981c13;
    --accent-primary-hover: #7d1710;
    --accent-primary-light: rgba(152, 28, 19, 0.15);
    --accent-secondary: #FF6B4A;
    --accent-secondary-hover: #E55A3A;
    --accent-tertiary: #E8A838;
    --accent-warning: #F59E0B;
    --accent-danger: #EF4444;
    --accent-info: #3B82F6;

    --text-primary: #F8FAFC;
    --text-secondary: #A0A8B4;
    --text-muted: #6B7280;
    --text-placeholder: #4B5563;

    --border-color: #252729;
    --border-light: #3A3D42;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 20px rgba(152, 28, 19, 0.3);
    --shadow-glow-hover: 0 0 30px rgba(152, 28, 19, 0.4);

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Layout */
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 72px;
    --header-height: 70px;
}

/* Performance Optimizations */
.studio-results-grid,
.history-grid,
.community-grid,
.library-grid {
    content-visibility: auto;
    contain-intrinsic-size: 1px 500px;
    /* Placeholder size for virtual scrolling */
}

/* Reset & Base Styles */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-primary-hover);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
    background: none;
}

input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
}

img {
    max-width: 100%;
    height: auto;
}

.hidden {
    display: none !important;
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.btn-full {
    width: 100%;
}


.loader {
    text-align: center;
}

.loader-ring {
    width: 60px;
    height: 60px;
    border: 3px solid var(--bg-tertiary);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

.loader-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ================================================
   Layout Components
   ================================================ */

/* App Container */
.app {
    display: block;
    /* Change from flex to block since sidebar is fixed */
    min-height: 100vh;
    overflow-x: hidden;
}

/* Sidebar - REMOVED FROM UI */
.sidebar {
    display: none !important;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
    overflow: hidden;
}

.sidebar-header {
    padding: var(--spacing-md);
    /* Reduced padding */
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    min-height: var(--header-height);
}

.sidebar.collapsed .sidebar-header {
    padding: var(--spacing-md) 0;
    justify-content: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
    opacity: 1;
    transition: opacity var(--transition-base);
}

.sidebar.collapsed .logo {
    display: none;
}

.sidebar.collapsed .logo-text {
    display: none;
}

.sidebar-toggle {
    color: var(--text-secondary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
}

.sidebar-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.sidebar-nav {
    flex: 1;
    padding: var(--spacing-md);
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xs);
    transition: all var(--transition-fast);
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--accent-primary-light);
    color: var(--accent-primary);
}

.nav-item svg {
    flex-shrink: 0;
}

.nav-item span {
    white-space: nowrap;
    opacity: 1;
    transition: opacity var(--transition-base);
}

.sidebar.collapsed .nav-item span {
    display: none;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: var(--spacing-md) 0;
}

.sidebar-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.user-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.stat {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.sidebar.collapsed .user-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.sidebar.collapsed .stat-label {
    display: none;
}

/* Main Content */
.main-content {
    /* Sidebar removed - full width now */
    margin-left: 0;
    transition: margin-left var(--transition-base);
    overflow-x: hidden;
    width: 100%;
}

/* Sidebar collapsed class no longer needed */

/* Header */
.header {
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-xl);
    position: sticky;
    top: 0;
    z-index: 9000 !important;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.mobile-menu-btn {
    display: none;
    color: var(--text-secondary);
    padding: var(--spacing-sm);
}

/* Search container - hidden */
.search-container {
    display: none;
}

/* Header Logo */
.header-logo {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

#search-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 48px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

#search-input::placeholder {
    color: var(--text-placeholder);
}

#search-input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-primary-light);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-nav {
    display: flex;
    gap: var(--spacing-lg);
    margin: 0 var(--spacing-xl);
}

.header-nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
}

.header-nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.header-nav-link.active {
    color: var(--accent-primary);
    background: var(--accent-primary-light);
}

.header-nav-item {
    position: relative;
    padding-bottom: 10px;
    /* Bridge the gap */
    margin-bottom: -10px;
    /* Compensate for padding */
}

.header-sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 380px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-sm);
    z-index: 1000;
    margin-top: 5px;
}

.header-nav-item:hover .header-sub-menu,
.header-sub-menu:hover {
    display: block;
}

.header-sub-menu-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4px;
    max-height: 400px;
    overflow-y: auto;
}

.header-sub-menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.header-sub-menu-item:hover {
    background: var(--bg-hover);
}

.header-sub-menu-item .menu-info {
    flex: 1;
}

.header-sub-menu-item .menu-title {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.header-sub-menu-item .menu-desc {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.2;
}

.header-sub-menu-item .menu-icon {
    width: 32px;
    height: 32px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    flex-shrink: 0;
}

.header-sub-menu-item.video-model .menu-icon {
    color: #3B82F6;
    /* Video specific color */
}

.credits-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.credits-display:hover {
    border-color: var(--accent-primary);
    background: var(--accent-primary-light);
}

.credits-display svg {
    color: var(--accent-secondary);
}

.credits-display span {
    font-weight: 600;
    color: var(--accent-secondary);
}

.credits-label {
    color: var(--text-secondary);
    font-weight: 400;
}

.add-credits-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--accent-primary);
    border-radius: 50%;
    color: white;
    transition: all var(--transition-fast);
}

.add-credits-btn:hover {
    background: var(--accent-primary-hover);
    transform: scale(1.1);
}

.notification-btn {
    position: relative;
    color: var(--text-secondary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.notification-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.notification-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 18px;
    height: 18px;
    background: var(--accent-danger);
    border-radius: 50%;
    font-size: 0.7rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.user-menu {
    position: relative;
}

.user-avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.user-avatar:hover {
    transform: scale(1.05);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 240px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    z-index: 9001 !important;
}

.dropdown-header {
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
}

.dropdown-header span {
    display: block;
}

.dropdown-header span:first-child {
    font-weight: 600;
}

.dropdown-header span:last-child {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
}

.user-dropdown a {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.user-dropdown a:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* Page Content */
.page-content {
    padding: var(--spacing-xl);
    min-height: calc(100vh - var(--header-height));
}

.page {
    display: none;
}

.page.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
}

.page-title h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.page-title p {
    color: var(--text-secondary);
}

.page-actions {
    display: flex;
    gap: var(--spacing-md);
}

/* ================================================
   Category Filters
   ================================================ */

.category-filters {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    overflow-x: auto;
    padding-bottom: var(--spacing-sm);
}

.filter-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    color: var(--text-secondary);
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.filter-btn.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

.filter-btn svg {
    flex-shrink: 0;
}

/* ================================================
   Models Grid
   ================================================ */

.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.model-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    cursor: pointer;
}

.model-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.model-card-header {
    height: 140px;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.model-card-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 40%, rgba(99, 102, 241, 0.1) 100%);
}

.model-icon {
    width: 64px;
    height: 64px;
    background: var(--bg-active);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    position: relative;
    z-index: 1;
}

.model-icon svg {
    width: 32px;
    height: 32px;
}

.model-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--accent-primary);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
}

.model-badge.new {
    background: var(--accent-secondary);
}

.model-badge.popular {
    background: var(--accent-warning);
}

.model-card-body {
    padding: var(--spacing-lg);
}

.model-provider {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.model-provider svg {
    width: 16px;
    height: 16px;
}

.model-card-body h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.model-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.model-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.model-cost {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--accent-primary-light);
    border-radius: var(--radius-sm);
    color: var(--accent-primary);
    font-size: 0.85rem;
    font-weight: 600;
}

.model-cost svg {
    width: 14px;
    height: 14px;
}

.model-stats {
    display: flex;
    gap: var(--spacing-md);
    color: var(--text-muted);
    font-size: 0.85rem;
}

.model-stats span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.model-stats svg {
    width: 14px;
    height: 14px;
}

.model-card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: var(--spacing-md);
}

.model-card-footer .btn {
    flex: 1;
}

/* ================================================
   Buttons
   ================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-primary-hover);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.btn-social {
    flex: 1;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.btn-social:hover {
    border-color: var(--accent-primary);
}

.btn-danger {
    background: var(--accent-danger);
    color: white;
}

.btn-danger:hover {
    background: #DC2626;
}

.btn-full {
    width: 100%;
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
}

.load-more-container {
    text-align: center;
    margin-top: var(--spacing-2xl);
}

/* ================================================
   Modals
   ================================================ */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 32px;
    height: 32px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.5rem;
    line-height: 1;
    transition: all var(--transition-fast);
    z-index: 10;
}

.modal-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* Auth Modal */
.auth-modal-content {
    width: 100%;
    max-width: 420px;
    padding: var(--spacing-2xl);
}

.auth-form {
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-logo {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
}

.auth-header h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.auth-header p {
    color: var(--text-secondary);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--accent-primary);
    outline: none;
    box-shadow: 0 0 0 3px var(--accent-primary-light);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-placeholder);
}

.auth-divider {
    text-align: center;
    margin: var(--spacing-lg) 0;
    position: relative;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-color);
}

.auth-divider span {
    position: relative;
    background: var(--bg-secondary);
    padding: 0 var(--spacing-md);
    color: var(--text-muted);
    font-size: 0.85rem;
}

.social-auth {
    display: flex;
    gap: var(--spacing-md);
}

.auth-switch {
    text-align: center;
    margin-top: var(--spacing-lg);
    color: var(--text-secondary);
}

.auth-switch a {
    font-weight: 500;
}

/* Credit Modal */
.credit-modal-content {
    width: 100%;
    max-width: 600px;
    padding: var(--spacing-2xl);
}

.credit-modal-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.credit-modal-header h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.credit-modal-header p {
    color: var(--text-secondary);
}

.credit-packages {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.credit-package {
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.credit-package:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
}

.credit-package.popular {
    border-color: var(--accent-primary);
    background: var(--accent-primary-light);
}

.credit-package.enterprise {
    border-color: var(--accent-secondary);
}

.package-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.package-badge.popular-badge {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.package-credits {
    margin-bottom: var(--spacing-md);
}

.credits-amount {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.credits-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.package-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-xs);
}

.package-per-credit {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.package-save {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--accent-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
}

.payment-methods {
    margin-bottom: var(--spacing-xl);
}

.payment-methods p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.payment-options {
    display: flex;
    gap: var(--spacing-md);
}

.payment-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.payment-btn:hover {
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.payment-btn.active {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: var(--accent-primary-light);
}

/* Model Execution Modal */
.model-modal-content {
    width: 95%;
    max-width: 1200px;
    height: 90vh;
    padding: 0;
    display: flex;
    flex-direction: column;
}

.model-execution-container {
    display: flex;
    height: 100%;
}

.model-input-panel {
    flex: 1;
    padding: var(--spacing-xl);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
}

.model-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.model-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
}

.model-header h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.model-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.input-section {
    margin-bottom: var(--spacing-lg);
}

.input-section label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.input-section textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    resize: vertical;
    min-height: 150px;
    font-family: 'Inter', sans-serif;
    transition: all var(--transition-fast);
}

.input-section textarea:focus {
    border-color: var(--accent-primary);
    outline: none;
    box-shadow: 0 0 0 3px var(--accent-primary-light);
}

.prompt-stats {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-sm);
    font-size: 0.85rem;
    color: var(--text-muted);
}

#model-cost {
    color: var(--accent-secondary);
    font-weight: 500;
}

.advanced-options {
    margin-bottom: var(--spacing-lg);
}

.advanced-options details {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.advanced-options summary {
    padding: var(--spacing-md);
    cursor: pointer;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.advanced-options summary:hover {
    color: var(--text-primary);
}

.options-content {
    padding: 0 var(--spacing-md) var(--spacing-md);
}

.generate-btn {
    position: relative;
}

.generate-btn .btn-loading {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.spinner {
    width: 18px;
    height: 18px;
    animation: spin 1s linear infinite;
}

.model-output-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
}

.output-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    font-weight: 500;
    color: var(--text-secondary);
}

.output-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.action-btn {
    width: 36px;
    height: 36px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.action-btn:hover {
    background: var(--accent-primary);
    color: white;
}

.output-content {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.output-placeholder {
    text-align: center;
    color: var(--text-muted);
}

.output-placeholder svg {
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.output-content .generated-image {
    max-width: 100%;
    max-height: 100%;
    border-radius: var(--radius-md);
}

.output-content .generated-text {
    white-space: pre-wrap;
    line-height: 1.8;
}

/* ================================================
   Toast Notifications
   ================================================ */

.toast {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transform: translateY(100px);
    opacity: 0;
    transition: all var(--transition-base);
    z-index: 2000;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.success {
    border-color: var(--accent-secondary);
}

.toast.error {
    border-color: var(--accent-danger);
}

.toast.warning {
    border-color: var(--accent-warning);
}

/* ================================================
   Library Page
   ================================================ */

.library-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-md);
}

.tab-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.tab-btn.active {
    color: var(--accent-primary);
    background: var(--accent-primary-light);
}

.library-tab {
    display: none;
}

.library-tab.active {
    display: block;
}

.library-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.library-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-fast);
}

.library-item:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.library-item-image {
    height: 160px;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.library-item-image svg {
    width: 48px;
    height: 48px;
    color: var(--text-muted);
}

.library-item-body {
    padding: var(--spacing-md);
}

.library-item-body h4 {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-xs);
}

.library-item-body p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.library-item-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

.library-item-model {
    font-size: 0.8rem;
    color: var(--accent-primary);
    font-weight: 500;
}

.collections-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.collection-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-fast);
}

.collection-card:hover {
    border-color: var(--accent-primary);
}

.collection-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.collection-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
}

.collection-info h4 {
    margin-bottom: var(--spacing-xs);
}

.collection-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.collection-items {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.collection-preview {
    width: 60px;
    height: 60px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.collection-preview svg {
    width: 24px;
    height: 24px;
    color: var(--text-muted);
}

/* ================================================
   History Page
   ================================================ */

.history-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-fast);
}

.stat-card:hover {
    border-color: var(--accent-primary);
}

.stat-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-info .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-info .stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.history-list {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.history-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.history-item:last-child {
    border-bottom: none;
}

.history-item:hover {
    background: var(--bg-hover);
}

.history-thumbnail {
    width: 64px;
    height: 64px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.history-thumbnail svg {
    width: 24px;
    height: 24px;
    color: var(--text-muted);
}

.history-info {
    flex: 1;
}

.history-info h4 {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-xs);
}

.history-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.history-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.history-model {
    font-size: 0.8rem;
    color: var(--accent-primary);
    font-weight: 500;
}

.history-date {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.history-cost {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--accent-primary-light);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-primary);
}

/* ================================================
   Settings Page
   ================================================ */

.settings-container {
    display: flex;
    gap: var(--spacing-xl);
}

.settings-nav {
    width: 220px;
    flex-shrink: 0;
}

.settings-nav-btn {
    display: block;
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xs);
    transition: all var(--transition-fast);
}

.settings-nav-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.settings-nav-btn.active {
    background: var(--accent-primary-light);
    color: var(--accent-primary);
}

.settings-content {
    flex: 1;
}

.settings-tab {
    display: none;
}

.settings-tab.active {
    display: block;
}

.settings-tab h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.settings-tab h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.settings-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.settings-form {
    max-width: 600px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.settings-form .btn {
    margin-top: var(--spacing-lg);
}

/* Billing Section */
.billing-overview {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.current-balance {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.balance-info {
    display: flex;
    flex-direction: column;
}

.billing-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.balance-label {
    color: var(--text-secondary);
}

.balance-amount {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-secondary);
}

.balance-credits {
    color: var(--text-secondary);
}

.current-balance .btn {
    margin-left: auto;
}

.transaction-list {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.transaction-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.transaction-item:last-child {
    border-bottom: none;
}

.transaction-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.transaction-icon.credit {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-secondary);
}

.transaction-icon.debit {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-danger);
}

.transaction-info {
    flex: 1;
}

.transaction-info p {
    font-weight: 500;
}

.transaction-info span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.transaction-amount {
    font-weight: 600;
}

.transaction-amount.positive {
    color: var(--accent-secondary);
}

.transaction-amount.negative {
    color: var(--accent-danger);
}

/* API Keys Section */
.api-key-list {
    margin-bottom: var(--spacing-lg);
}

.api-key-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.api-key-value {
    flex: 1;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.api-key-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Notification Options */
.notification-options {
    margin-bottom: var(--spacing-xl);
}

.notification-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--border-color);
}

.notification-option:last-child {
    border-bottom: none;
}

.option-info {
    flex: 1;
}

.option-title {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.option-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.toggle {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    height: 20px;
    width: 20px;
    left: 2px;
    bottom: 2px;
    background: var(--text-secondary);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.toggle input:checked+.toggle-slider {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.toggle input:checked+.toggle-slider::before {
    transform: translateX(22px);
    background: white;
}

/* Security Section */
.security-section {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.security-section:last-child {
    border-bottom: none;
}

.security-section.danger-zone {
    background: rgba(239, 68, 68, 0.05);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.security-section.danger-zone h4 {
    color: var(--accent-danger);
}

.security-section.danger-zone .settings-description {
    color: var(--accent-danger);
    opacity: 0.8;
}

/* ================================================
   Mobile Navigation
   ================================================ */

.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-secondary);
    z-index: 200;
    transform: translateX(-100%);
    transition: transform var(--transition-base);
}

.mobile-nav.active {
    transform: translateX(0);
}

.mobile-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav-close {
    color: var(--text-secondary);
    padding: var(--spacing-sm);
}

.mobile-nav-items {
    padding: var(--spacing-lg);
}

.mobile-nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xs);
    transition: all var(--transition-fast);
}

.mobile-nav-item:hover,
.mobile-nav-item.active {
    background: var(--accent-primary-light);
    color: var(--accent-primary);
}

/* ================================================
   Responsive Styles
   ================================================ */

@media (max-width: 1024px) {
    .credit-packages {
        grid-template-columns: repeat(2, 1fr);
    }

    .history-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .settings-container {
        flex-direction: column;
    }

    .settings-nav {
        width: 100%;
        display: flex;
        overflow-x: auto;
        padding-bottom: var(--spacing-md);
        border-bottom: 1px solid var(--border-color);
    }

    .settings-nav-btn {
        white-space: nowrap;
        margin-bottom: 0;
        margin-right: var(--spacing-sm);
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }

    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .search-container {
        width: 100%;
        max-width: 300px;
    }

    .header {
        padding: 0 var(--spacing-md);
    }

    .credits-label {
        display: none;
    }

    .page-content {
        padding: var(--spacing-lg);
    }

    .page-header {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .models-grid {
        grid-template-columns: 1fr;
    }

    .model-execution-container {
        flex-direction: column;
    }

    .model-input-panel {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        max-height: 50vh;
    }

    .credit-packages {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .current-balance {
        flex-wrap: wrap;
    }

    .current-balance .btn {
        margin-left: 0;
        margin-top: var(--spacing-md);
        width: 100%;
    }

    .history-item {
        flex-wrap: wrap;
    }

    .history-meta {
        width: 100%;
        margin-top: var(--spacing-sm);
        justify-content: space-between;
    }
}

@media (max-width: 480px) {
    .models-grid {
        grid-template-columns: 1fr;
    }

    .category-filters {
        gap: var(--spacing-xs);
    }

    .filter-btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 0.85rem;
    }

    .filter-btn span:last-child {
        display: none;
    }

    .history-stats {
        grid-template-columns: 1fr;
    }

    .modal-content {
        margin: var(--spacing-md);
        max-height: calc(100vh - var(--spacing-md) * 2);
    }
}

/* ================================================
   Animations & Effects
   ================================================ */

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

.skeleton {
    background: linear-gradient(90deg,
            var(--bg-tertiary) 25%,
            var(--bg-hover) 50%,
            var(--bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

.glow {
    animation: glow-pulse 2s ease-in-out infinite;
}

@keyframes glow-pulse {

    0%,
    100% {
        box-shadow: var(--shadow-glow);
    }

    50% {
        box-shadow: var(--shadow-glow-hover);
    }
}

/* Scrollbar Styles */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Selection */
::selection {
    background: var(--accent-primary);
    color: white;
}

/* Focus Visible */
:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

/* Model Dropdown Styles */
.model-dropdown-content {
    position: absolute;
    top: calc(100% + 5px);
    left: 0;
    width: 320px;
    background: #0F1219;
    border: 1px solid #2D3748;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    padding: 8px;
    max-height: 400px;
    overflow-y: auto;
}

.model-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
}

.model-option:hover {
    background: #1A202C;
}

.model-option.selected {
    background: #1A202C;
    border: 1px solid #4A5568;
}

.model-option-icon {
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.model-option-info {
    flex: 1;
}

.model-option-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: #F8FAFC;
    display: flex;
    align-items: center;
    gap: 8px;
}

.model-option-desc {
    font-size: 0.75rem;
    color: #94A3B8;
    margin-top: 2px;
}

.model-badge-mini {
    font-size: 0.6rem;
    padding: 1px 4px;
    border-radius: 4px;
    background: #D2F800;
    /* Default Neon Check */
    color: #000;
    font-weight: bold;
}

.model-badge-mini.popular {
    background: #F59E0B;
}

.model-badge-mini.premium {
    background: linear-gradient(135deg, #981c13, #FF6B4A);
    color: white;
}

.model-badge-mini.new {
    background: #10B981;
    color: white;
}

/* Custom Overrides for LiteGraph */
.litegraph .graphdialog {
    background-color: #1A202C !important;
    border: 1px solid #4A5568 !important;
    color: white !important;
    border-radius: 8px !important;
}

.litegraph .graphdialog .name {
    color: #E2E8F0 !important;
    font-family: 'Inter', sans-serif !important;
}

.litegraph .graphdialog input,
.litegraph .graphdialog select {
    background-color: #2D3748 !important;
    color: white !important;
    border: 1px solid #4A5568 !important;
    padding: 4px;
    border-radius: 4px;
}

.litegraph .graphdialog button {
    background-color: #981c13 !important;
    color: white !important;
    border: none !important;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
}

.lgraphcanvas {
    font-family: 'Inter', sans-serif !important;
}

/* ================================================
   Header Dropdown Menu
   ================================================ */

.header-nav {
    height: 100%;
    align-items: center;
}

.header-nav-item {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
}

.header-sub-menu {
    position: absolute;
    top: calc(100% - 10px);
    /* Overlap slightly to prevent gap issues */
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: rgba(15, 18, 25, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm);
    min-width: 320px;
    box-shadow: var(--shadow-xl), 0 0 0 1px rgba(255, 255, 255, 0.05);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 9999;
    pointer-events: none;
    /* Prevent interaction when hidden */
    padding-top: 10px;
    /* Spacing for the arrow/gap */
}

/* Invisible bridge to prevent menu closing when moving mouse from link to menu */
.header-sub-menu::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 0;
    width: 100%;
    height: 20px;
    background: transparent;
}

.header-nav-item:hover .header-sub-menu,
.header-nav-item:focus-within .header-sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(10px);
    /* Keep Y position consistent */
    pointer-events: auto;
}

/* Specific positioning for Image/Video tabs if needed */
#nav-image .header-sub-menu,
#nav-video .header-sub-menu {
    /* Using generic centering - Placeholder for future specific offsets */
    transform-origin: top center;
}

.header-sub-menu-grid {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 60vh;
    overflow-y: auto;
    padding-right: 4px;
    /* Space for scrollbar */
}

/* Custom scrollbar for menu */
.header-sub-menu-grid::-webkit-scrollbar {
    width: 4px;
}

.header-sub-menu-grid::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.02);
}

.header-sub-menu-grid::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 2px;
}

.header-sub-menu-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: 10px;
    border-radius: var(--radius-md);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    text-decoration: none;
    background: transparent;
    border: 1px solid transparent;
}

.header-sub-menu-item:hover {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.05);
    transform: translateX(4px);
}

.header-sub-menu-item .menu-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.header-sub-menu-item:hover .menu-icon {
    background: var(--accent-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

/* Variant colors based on model type if needed */
.header-sub-menu-item.video-model:hover .menu-icon {
    background: var(--accent-secondary);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.header-sub-menu-item .menu-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.header-sub-menu-item .menu-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
    line-height: 1.2;
}

.header-sub-menu-item .menu-desc {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.3;
}

.header-sub-menu-item:hover .menu-title {
    color: white;
}

/* ================================================
   Toggle Switch & Edit Studio Utilities
   ================================================ */

.switch {
    display: inline-block;
    height: 24px;
    position: relative;
    width: 44px;
}

.switch input {
    display: none;
}

.studio-container video {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    background: #000;
}

.loader-ring {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(210, 248, 0, 0.1);
    border-top: 3px solid #D2F800;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

#edit-workspace video {
    border: 1px solid #2D3748;
    transition: transform 0.3s ease;
}

#edit-workspace video:hover {
    transform: scale(1.01);
}

/* ================================================
   Home Page Styles
   ================================================ */

.home-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) 0;
}

.home-hero {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-xl);
    background: linear-gradient(135deg, rgba(152, 28, 19, 0.1) 0%, rgba(255, 107, 74, 0.05) 100%);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    margin-bottom: var(--spacing-2xl);
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, #981c13, #FF6B4A);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-actions .btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.news-section {
    margin-bottom: var(--spacing-2xl);
}

.section-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
}

.section-badge {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--accent-primary-light);
    color: var(--accent-primary);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.news-placeholder {
    background: var(--bg-card);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    color: var(--text-secondary);
}

.placeholder-icon {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.news-placeholder h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.news-placeholder p {
    max-width: 400px;
    margin: 0 auto;
}

.quick-actions h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.action-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
}

.action-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.action-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.action-card:hover .action-icon {
    transform: scale(1.1);
}

.action-icon.image-icon {
    background: linear-gradient(135deg, rgba(152, 28, 19, 0.2), rgba(255, 107, 74, 0.1));
    color: #981c13;
}

.action-icon.video-icon {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(147, 197, 253, 0.1));
    color: #3B82F6;
}

.action-icon.edit-icon {
    background: linear-gradient(135deg, rgba(232, 168, 56, 0.2), rgba(252, 211, 77, 0.1));
    color: #E8A838;
}

.action-icon.workflow-icon {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(110, 231, 183, 0.1));
    color: #10B981;
}

.action-card span {
    font-weight: 600;
    color: var(--text-primary);
}

/* Footer Styles */
.app-footer {
    padding: 40px var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    background: var(--bg-primary);
    text-align: center;
}

.footer-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-secondary);
}

.footer-dot {
    opacity: 0.3;
}

/* ================================================
   Responsive Media Queries
   ================================================ */

/* Tablet and below (Mobile & Tablet) */
/* Creator Dashboard */
.creator-locked-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-2xl);
    background: rgba(255, 255, 255, 0.02);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-lg);
}

.locked-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.creator-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.creator-stat-card {
    background: var(--bg-tertiary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.referral-link-section {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
}

.referral-copy-box {
    display: flex;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.referral-copy-box input {
    flex: 1;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 15px;
    border-radius: var(--radius-sm);
    font-family: monospace;
}

.help-text {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.referral-list {
    margin-top: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.empty-text {
    text-align: center;
    color: var(--text-muted);
    padding: var(--spacing-lg);
}

@media (max-width: 1024px) {
    .header {
        padding: 0 var(--spacing-md);
    }

    .header-nav {
        display: none;
        /* Hide desktop nav */
    }

    .mobile-menu-btn {
        display: flex;
        /* Show mobile menu btn */
        align-items: center;
        justify-content: center;
    }

    .header-right {
        gap: var(--spacing-sm);
    }

    .credits-display {
        padding: 4px 10px;
    }

    .credits-label {
        display: none;
        /* Hide 'credits' label to save space */
    }

    .notification-btn {
        display: none;
        /* Hide notifications on mobile for simplicity */
    }

    .page-content {
        padding: var(--spacing-md);
    }

    .home-hero {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .actions-grid {
        grid-template-columns: 1fr 1fr;
    }

    .history-stats {
        grid-template-columns: 1fr 1fr;
    }

    .settings-container {
        flex-direction: column;
    }

    .settings-nav {
        width: 100%;
        display: flex;
        overflow-x: auto;
        padding-bottom: var(--spacing-sm);
        margin-bottom: var(--spacing-lg);
    }

    .settings-nav-btn {
        white-space: nowrap;
        padding: var(--spacing-sm) var(--spacing-md);
        margin-bottom: 0;
        margin-right: var(--spacing-xs);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    /* Studio Mobile Adjustments */
    .studio-vertical {
        padding: var(--spacing-md) !important;
        gap: var(--spacing-md) !important;
    }

    /* Fixed floating bar for mobile */
    .studio-vertical>div:last-child {
        margin-bottom: 0 !important;
        border-radius: 12px !important;
    }
}

/* Specific Mobile Phone Styles */
@media (max-width: 640px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .actions-grid {
        grid-template-columns: 1fr;
    }

    .history-stats {
        grid-template-columns: 1fr;
    }

    .models-grid {
        grid-template-columns: 1fr;
    }

    .library-grid {
        grid-template-columns: 1fr;
    }

    .page-header {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .page-actions {
        width: 100%;
    }

    .page-actions .btn {
        flex: 1;
    }

    .history-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }

    .history-meta {
        width: 100%;
        justify-content: space-between;
    }

    /* Studio UI on tiny screens */
    .studio-vertical .type-badge {
        display: none;
    }
}

/* Mobile Menu Overlay */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-menu-header {
    height: var(--header-height);
    padding: 0 var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.mobile-menu-close {
    color: var(--text-secondary);
    padding: var(--spacing-sm);
}

.mobile-menu-body {
    flex: 1;
    padding: var(--spacing-xl) var(--spacing-md);
    overflow-y: auto;
}

.mobile-menu-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mobile-menu-link {
    font-size: 1.25rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    color: var(--text-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-decoration: none;
    display: block;
    width: 100%;
}

.mobile-menu-link:hover {
    background: var(--bg-hover);
    color: var(--accent-primary);
}

.mobile-menu-link.active {
    background: var(--accent-primary-light);
    color: var(--accent-primary);
}

.mobile-menu-footer {
    padding: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

/* Workflow Mobile Warning */
.workflow-mobile-warning {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: var(--bg-primary);
    z-index: 5000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    text-align: center;
}

.warning-icon {
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.warning-content h2 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
}

.warning-content p {
    color: var(--text-secondary);
    max-width: 400px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.6;
}

@media (max-width: 1024px) {
    #page-workflow.active .workflow-mobile-warning {
        display: flex;
    }

    /* Result Modals */
    .result-modal-content {
        flex-direction: column !important;
        width: 95% !important;
        height: 90vh !important;
        border-radius: 12px !important;
    }

    .result-media-section {
        height: 40% !important;
    }

    .result-info-section {
        padding: var(--spacing-md) !important;
    }

    /* Floating Studio Bars */
    .studio-vertical>div[style*="background: rgba(23, 23, 23"] {
        padding: 8px !important;
        border-radius: 12px !important;
    }

    /* Stack inputs in studio bars */
    .studio-vertical div[style*="display: flex; gap: 12px"] {
        flex-direction: column !important;
        align-items: stretch !important;
    }

    .studio-vertical div[style*="display: flex; gap: 8px"] {
        flex-wrap: wrap;
    }

    /* Action Buttons in Studio */
    #studio-generate-btn,
    #video-generate-btn,
    #edit-generate-btn {
        width: 100% !important;
        margin-top: 8px !important;
    }
}